Cabbage is a cool-season crop that can be grown in most zones with the right timing and care. It is hardy in zones 2-9 and can be planted in the late spring or early summer for a fall harvest, or in the late summer or early fall for a winter harvest. In warmer climates, it is best to plant cabbage in the fall or winter to avoid the heat of summer. It is important to note that some varieties such as savoy cabbage, have a slightly more limited hardiness zone and they are best grown in zones 3-9.